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MMBZ5251B-G3-18

MMBZ5251B-G3-18

Product Overview

Category

The MMBZ5251B-G3-18 belongs to the category of Zener diodes.

Use

It is commonly used for voltage regulation and transient suppression in electronic circuits.

Characteristics

  • Low leakage current
  • High reliability
  • Small package size
  • Wide operating temperature range

Package

The MMBZ5251B-G3-18 is typically available in a SOT-23 surface mount package.

Essence

This Zener diode is essential for stabilizing voltage levels in various electronic applications.

Packaging/Quantity

The MMBZ5251B-G3-18 is usually packaged in reels with quantities varying based on manufacturer specifications.

Specifications

  • Zener Voltage: 18V
  • Power Dissipation: 200mW
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage: 900mV
  • Reverse Leakage Current: 5µA

Detailed Pin Configuration

The MMBZ5251B-G3-18 has three pins: 1. Anode (A) 2. Cathode (K) 3. No Connection (NC)

Functional Features

  • Precise voltage regulation
  • Protection against voltage spikes
  • Low reverse leakage current

Advantages

  • Small form factor
  • Reliable voltage regulation
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitive to overvoltage conditions

Working Principles

The MMBZ5251B-G3-18 operates based on the Zener effect, where it maintains a constant voltage drop across its terminals when reverse biased.

Detailed Application Field Plans

The MMBZ5251B-G3-18 is widely used in: - Voltage regulators - Overvoltage protection circuits - Signal clamping applications

Detailed and Complete Alternative Models

Some alternative models to the MMBZ5251B-G3-18 include: - BZX84C18 - 1N4746A - BZT52C18

Note: The above list is not exhaustive and may vary based on specific requirements.


This content provides a comprehensive overview of the MMBZ5251B-G3-18 Zener diode, covering its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Énumérez 10 questions et réponses courantes liées à l'application de MMBZ5251B-G3-18 dans les solutions techniques

  1. What is the MMBZ5251B-G3-18?

    • The MMBZ5251B-G3-18 is a Zener diode designed for voltage regulation and protection in various technical solutions.
  2. What is the voltage rating of the MMBZ5251B-G3-18?

    • The MMBZ5251B-G3-18 has a voltage rating of 18V, making it suitable for applications requiring precise voltage regulation.
  3. What are the typical applications of the MMBZ5251B-G3-18?

    • Typical applications include voltage clamping, voltage regulation, and transient voltage suppression in electronic circuits.
  4. What is the power dissipation of the MMBZ5251B-G3-18?

    • The power dissipation of the MMBZ5251B-G3-18 is typically 200mW, allowing it to handle moderate power levels.
  5. What is the maximum forward voltage of the MMBZ5251B-G3-18?

    • The maximum forward voltage is 1V at a forward current of 10mA, ensuring minimal voltage drop across the diode.
  6. Is the MMBZ5251B-G3-18 RoHS compliant?

    • Yes, the MMBZ5251B-G3-18 is RoHS compliant, meeting environmental standards for lead-free components.
  7. Can the MMBZ5251B-G3-18 be used for overvoltage protection?

    • Yes, the MMBZ5251B-G3-18 is suitable for overvoltage protection due to its Zener diode characteristics.
  8. What is the temperature range for the MMBZ5251B-G3-18?

    • The MMBZ5251B-G3-18 is rated for operation over a temperature range of -55°C to 150°C, making it suitable for diverse environments.
  9. Does the MMBZ5251B-G3-18 require external heat sinking?

    • In most applications, the MMBZ5251B-G3-18 does not require external heat sinking due to its low power dissipation.
  10. Are there any specific layout considerations for using the MMBZ5251B-G3-18?

    • It is recommended to minimize trace lengths and keep the diode close to the circuit it is protecting to reduce parasitic effects and ensure optimal performance.